重水堆产^(99)Mo棒束设计及入堆物理性能分析  

Design and In-core Neurotics Behavior Analysis of the Molybdenum-99 Producing Fuel Bundle

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作  者:谢运利 汪量子[1] 王晨琳[1] 姚磊 王连杰[1] 胡珏莹 XIE Yunli;WANG Liangzi;WANG Chenlin;YAO Lei;WANG Lianjie;HU Jueying(Science and Technology on Reactor System Design Technology Laboratory,Nuclear Power Institute of China,Chengdu,Sichuan Prov.610041,China)

机构地区:[1]中国核动力研究设计院核反应堆系统设计技术国家级重点实验室,四川成都610041

出  处:《中国核电》2024年第5期674-682,共9页China Nuclear Power

摘  要:重水堆具有不停堆在线装卸料特征,适宜生产^(99)Mo等短寿命同位素。国内医用同位素^(99)Mo应用广泛、用量大,具有自主国产化生产的需求。为满足国内^(99)Mo产量需求且对重水堆安全特性、稳定运行和正常供能的影响最小化为目标,采用WIMS-AECL及RFSP-IST等程序开展重水堆产^(99)Mo棒束组件设计及入堆辐照分析。提出产^(99)Mo燃料棒束的燃料棒燃料采用高富集度和低富集度铀径向分区设计方案,计算结果表明,其反应性、功率等和标准棒束基本一致。堆芯分析表明,与标准棒束性能相近的产^(99)Mo棒束装载到堆芯后,堆芯反应性、燃耗、功率分布、换料方式等主要指标均不发生明显变化,对堆芯性能扰动很小。因此单个重水堆燃料棒束部分天然铀燃料棒用高富集度和低富集度铀径向分区的产^(99)Mo燃料棒替换,可满足国内^(99)Mo产量需求。CANDU-type reactors operate on-line and without shutdown,suitable for producing short-lie nuclides such as molybdenum-99(^(99)Mo).^(9)Mo is widely used in China for medicine diagnostics.This paper focuses on^(99)Mo production study in CANDU reactors with softwares of WIMS-AECL and RFSP-IST.Design and in-core neurotics behavior analysis of the^(99)Moproducing fuel bundle based on standard bundle are investigated.Results show that^(99)Moproducing fuel bundle with fuel separated by high and low enrichment fuel in the radial direction almost has the same reactivity and power with the standard bundle.CANDU reactor loading this kind of^(99)Moproducing bundle also has little changes with standard CANDU reactor.Neurotic's behavior analysis show the potential use of^(99)Mo production in existing China CANDU-type reactors.

关 键 词:^(99)Mo 同位素生产 重水堆 燃料棒束 

分 类 号:TM623[电气工程—电力系统及自动化]

 

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